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(No Model.)

No. 525,464. 4Pacented Sept. 4, 1894.

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Ewen/450x' UNITED STATES PATENT OFFICE-v GEORGE W. KNIGHT, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR. TO

GEORGE DRAPER da SONS, OF SAME PLACE.

THREAD-RECEIVER FOR SPINNING AND TWISTING FRAMES.

SPECIFICATION forming part of Letters Patent No. 525,464, dated September .4, 1894.

Application filed February 8,1894. Serial No. 499.443- (NO mOGlJ To all whom, it' may concern:

Beit known that I, GEORGE W. KNIGHT, of

Hopedale, county of WVorcester, State of Mas-v sachusetts, have invented an Improvement in Thread-Receivers for Spinning and Twisting Frames, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings. representing like parts.

Inventors have for a longtime aimed to provide improved bearings :for spindles of spinning and twisting frames in order that such spindles may be run steadily at high speed and remain in substantially upright position to thus obviate injury to the thread or yarn being spun or twisted. Iam aware, prior to my invention, that James H. Northrop has devised means to secure this desired steadiness in rotation, or freedom from trembling, such means being denominated as aload equalizer, said equalizer being adapted to shift automatically by or due to centrifugal force. In the specific form shown by said Northrop the load equalizer is carried by the spindle. My improvement differs from the construction of the said Northrop, inasmuch as I apply shifting weights to the bobbin, spool, or equivalent thread-receiver on which the yarn or thread is spun or wound instead of directly to the spindle.

sider, a better manner, as I consider it the more desirable to support the weights loosely by or through the bobbin, spool, or thread-receiver.

One part of my invention, therefore, consists in a bobbin or thread-recei ver combined with a loose weight or weights carried thereby and adapted to shift or move laterally under the influence of centrifugal force developed by the rotation of the bobbin.

Other features of my invention will be hereinafter described and defined in the specilication and claims.

Figure l, in section, shows one f'orm of bobbin for spinning machines, together with my improvement part of the spindlebeing shown by dot-ted lines. Fig. 2 shows a different form of bobbin or device upon which,l thread is -wound as it is spun a part of the spindle being shown therein by dotted lines. Fig. 3

I in my invention attain substantially the same results, but iu, as I conshows yet another modification of my invention. Referring to Fig. l, the bobbin A has a conical base A of usual construction, and is bored outto surround the spindle A2, shown partially in dotted' lines Fig. l, said spindle being constructed in the usual manner. My 1m- Aproved rbobbin is, however, preferably somewhat reduced in diameter at or near its upper 6c or tip end,so as to form atubular portion a, about which I arrange one or mole-preferably a series,-of weights b, madeV as rings and preferably of metal, the rings being marntained upon the spindle by means of=a suitable collar as c preferably chambered, so that a portion c thereofv may t down over and inclose within it the said weights. In practice. these weights will be so applied to the bobbin that they may shift or change their position 7o under centrifugal action, to thus counteract by their change of position unequal loadingy of the bobbin.

In the form in which I have shown my invention in Fig. 1, the holes made through the weights are of larger diameter than the reduced tubular extension ct of the bobbin, but

the particular shape of the weight, so long as it is borneby and adapted to move on the bobbin under the action of centrifugalforce 8o and thereby aid in counterbalancing any inequality of load on the bobbin or spindle, or any inequality of running ofV the spindle, is immaterial.

In the modification Fig. 2, D represents a diierent but well known form of bobbinV or thread receiver, it having at its upper end av bore as cl, to fit the blade ZX of the spindle shown by dotted lines adhesively, and below l said bore it has a chamber d in which is 9ov placed a series of weights cl2 the same in char acter as those marked b in Fig. l, the undermost weights-of the series of weights d;- resting upon a shoulder t at the bottom of said bobbin chamber, said chamber being shown as closed by a bushing h, the lower end of which constitutes an overlapping shoulder.

The shoulder t and the lower end of the bushing h serve to contract the chamberfin the bobbin at bottom and top to a diameter Ioo less than that of the main body of the said e chamber, so that if said bobbin is removed from the spindle the weights will be contained in position in the chamber of the bobbin.

As the bobbin is put upon the spindle blade, the point of the latter will readily pass through the holes in the weights, and preferably the holes will be of such size as to present more or less looseness between the Weights and the outside of the spindle, and there will also be looseness between the interior of the bobbin chamber and the perpheries of the weights. The weights will act if the holes through the center are so large that they will not contact at all with the spindle, provided they are loose in the chamber.

In Fig. 3 I have shown a spool E, it having two heads e and a chambered barrel e', the

said chamber having a smaller bore as e2 to fit the spindle with which it is to co-operate. This spool has a shoulder at e3 upon which rests the lowermost weight of the pile of weights e4,said weights being prevented from falling out of said chamber by a suitable bushing e5 placed therein.

The weights e4 operate as described of the weights d2 and b, and these weights, more or less innumber, are all, it will be noticed, carried by and removable with the bobbin or device upon which the thread is to be wound, and the Weights are not connected to the spindle.

It will be obvious that my invention is applicable equally to any usual form of bobbin or spool upon which thread or yarn is wound, the said bobbin or device being carried by a high speedspindle, and therefore the said bobbin or spool of whatever form constitutes what I may denominate as a thread receiver, and by this latter term I intend, therefore, to include any usual bobbin or spool adapted to be put upon and rotated by a spindle, and whether the said thread receiver has one or two heads, or no head at all, and under the term thread, I also intend to include yarn, and the thread or yarn may be of any usual kind or material.

The weight or weights carried by the bobbinor thread-receiver of whatever form constitute a load equalizer.

I am aware prior to my'invention that a spindle has had applied to it adhesi'vely a wooden sleeve provided at its upper end with a notch adapted to engage the inner notched end of a plug inserted inl the top of the bob bin surrounding said bushing loosely and adapted to move laterally with relation to said bushing and `spindle as required by an unbalanced load, the bushing itself acting as a driver to the bobbin through the plug driven into the upper end of the bobbin. In my invention, however, the bobbin tits the spindle adhesively, is driven thereby, and the bobbin is not intended to move laterally on or with relation to its driving means, but on the contrary, the loose weights carried wholly by the bobbin shift freely thereon outside of the spindle and counterbalance in all directions any unequally balanced load.

Having described my invention, what I claim, and desire to secure by Letters Patent, 1s-

l. A bobbin or thread-receiver, combined with a loose weight or weights carried thereby and adapted to shift or move laterally thereon in all directions under the influence of centrifugal force developed by the rotation of said bobbin or thread-receiver, for the purposes set forth.

2. The combination with a rotatable spindle, and a bobbin or thread-receiver mounted thereon and driven thereby adhesively, of a. weight or weights carried by said bobbin or 'thread-receiver and adapted to shift laterally thereon automatically to counteract in all directions the influence of an unbalanced load,

substantially as described. $5

3. A thread or yarn receiver bored to t a spindle and to be rotated thereby, said ro v 4ceiver having a tubular extension andV an exd 'ternal shoulder, combined with a series o! weights surrounding said extension and e Vadapted to be shifted in their position thel'emlv by centrifugal force, said weights beingi caf ried wholly by said receiver andV being rei movable therewith from the spindle, substanw two subscribing witnesses.

GEORGE W. KNIGHT.

Witnesses:

E. D. BANCROFT, LINCOLN WRIGHT. 

